pliers vs plyers

pliers and plyers both are nouns.

Word	Noun	Adjective	Verb	Adverb
pliers	Yes	No	No	No
plyers	Yes	No	No	No

As nouns, pliers and plyers are synonyms defined as:

pliers and plyers: a gripping hand tool with two hinged arms and (usually) serrated jaws

Other synonyms of pliers include pair of pliers.

pliers (noun)	plyers (noun)
a gripping hand tool with two hinged arms and (usually) serrated jaws	a gripping hand tool with two hinged arms and (usually) serrated jaws